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Study on pyrolysis characteristics of lump coal in the context of underground coal gasification

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  • Xin, Lin
  • An, Mingyu
  • Feng, Mingze
  • Li, Kaixuan
  • Cheng, Weimin
  • Liu, Weitao
  • Hu, Xiangming
  • Wang, Zhigang
  • Han, Limin

Abstract

Coal reaction in dry distillation zone, as an essential step in underground coal gasification (UCG), is of great significance to be studied about its characteristics in a comprehensive way. This study simulated the pyrolysis process of lump coal in UCG tunnel in a laboratory. Lump coal samples were heated in nitrogen environment at 200–600 °C. The functional groups, pore structure, and microcrystalline structure of coal samples were analyzed by Fourier transform infrared spectrometer, scanning electron microscope, and X-ray diffractometer. The results showed that, as final pyrolysis temperature increased, the contents of hydroxyl, aliphatic, and aromatic groups all showed decreasing trends. The escalation of CHar/CC and CH2/CH3 implied that the condensation degree of aromatic structure and the branching degree of fatty chain increased. With the temperature increasing, volatile substances such as CO2 and CH4 were released. Coal samples had higher porosity and gradually turned hollowed. The d002 (Interlinear Spacing of Microcrystalline) of the coal sample decreased, Lc (final stacking height) increased and Lc/d002 (stacking layer numbers) decreased, indicating that the crystal structure of coal samples tended to be more disordered.

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  • Xin, Lin & An, Mingyu & Feng, Mingze & Li, Kaixuan & Cheng, Weimin & Liu, Weitao & Hu, Xiangming & Wang, Zhigang & Han, Limin, 2021. "Study on pyrolysis characteristics of lump coal in the context of underground coal gasification," Energy, Elsevier, vol. 237(C).
    • Handle: RePEc:eee:energy:v:237:y:2021:i:c:s0360544221018740
    DOI: 10.1016/j.energy.2021.121626
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    References listed on IDEAS

    as
    1. Kumari, Geeta & Vairakannu, Prabu, 2018. "CO2-air based two stage gasification of low ash and high ash Indian coals in the context of underground coal gasification," Energy, Elsevier, vol. 143(C), pages 822-832.
    2. Laciak, Marek & Kostúr, Karol & Durdán, Milan & Kačur, Ján & Flegner, Patrik, 2016. "The analysis of the underground coal gasification in experimental equipment," Energy, Elsevier, vol. 114(C), pages 332-343.
    3. Jiang, Liangliang & Chen, Zhangxin & Farouq Ali, S.M., 2019. "Feasibility of carbon dioxide storage in post-burn underground coal gasification cavities," Applied Energy, Elsevier, vol. 252(C), pages 1-1.
    4. Daggupati, Sateesh & Mandapati, Ramesh N. & Mahajani, Sanjay M. & Ganesh, Anuradda & Mathur, D.K. & Sharma, R.K. & Aghalayam, Preeti, 2010. "Laboratory studies on combustion cavity growth in lignite coal blocks in the context of underground coal gasification," Energy, Elsevier, vol. 35(6), pages 2374-2386.
    5. Verma, Aman & Kumar, Amit, 2015. "Life cycle assessment of hydrogen production from underground coal gasification," Applied Energy, Elsevier, vol. 147(C), pages 556-568.
    6. Liu, Peng & Zhang, Dexiang & Wang, Lanlan & Zhou, Yang & Pan, Tieying & Lu, Xilan, 2016. "The structure and pyrolysis product distribution of lignite from different sedimentary environment," Applied Energy, Elsevier, vol. 163(C), pages 254-262.
    7. Verma, Aman & Olateju, Babatunde & Kumar, Amit, 2015. "Greenhouse gas abatement costs of hydrogen production from underground coal gasification," Energy, Elsevier, vol. 85(C), pages 556-568.
    8. Nakaten, Natalie & Schlüter, Ralph & Azzam, Rafig & Kempka, Thomas, 2014. "Development of a techno-economic model for dynamic calculation of cost of electricity, energy demand and CO2 emissions of an integrated UCG–CCS process," Energy, Elsevier, vol. 66(C), pages 779-790.
    9. Eftekhari, Ali Akbar & Van Der Kooi, Hedzer & Bruining, Hans, 2012. "Exergy analysis of underground coal gasification with simultaneous storage of carbon dioxide," Energy, Elsevier, vol. 45(1), pages 729-745.
    10. Su, Fa-qiang & Hamanaka, Akihiro & Itakura, Ken-ichi & Zhang, Wenyan & Deguchi, Gota & Sato, Kohki & Takahashi, Kazuhiro & Kodama, Jun-ichi, 2018. "Monitoring and evaluation of simulated underground coal gasification in an ex-situ experimental artificial coal seam system," Applied Energy, Elsevier, vol. 223(C), pages 82-92.
    11. Yi, Lan & Feng, Jie & Li, Wen-Ying, 2019. "Evaluation on a combined model for low-rank coal pyrolysis," Energy, Elsevier, vol. 169(C), pages 1012-1021.
    12. Prabu, V. & Geeta, K., 2015. "CO2 enhanced in-situ oxy-coal gasification based carbon-neutral conventional power generating systems," Energy, Elsevier, vol. 84(C), pages 672-683.
    13. Sonibare, Oluwadayo O. & Haeger, Tobias & Foley, Stephen F., 2010. "Structural characterization of Nigerian coals by X-ray diffraction, Raman and FTIR spectroscopy," Energy, Elsevier, vol. 35(12), pages 5347-5353.
    14. Li, Jinhu & Li, Zenghua & Yang, Yongliang & Duan, Yujian & Xu, Jun & Gao, Ruiting, 2019. "Examination of CO, CO2 and active sites formation during isothermal pyrolysis of coal at low temperatures," Energy, Elsevier, vol. 185(C), pages 28-38.
    15. Prabu, V. & Jayanti, S., 2012. "Laboratory scale studies on simulated underground coal gasification of high ash coals for carbon-neutral power generation," Energy, Elsevier, vol. 46(1), pages 351-358.
    16. Li, He & Shi, Shiliang & Lin, Baiquan & Lu, Jiexin & Ye, Qing & Lu, Yi & Wang, Zheng & Hong, Yidu & Zhu, Xiangnan, 2019. "Effects of microwave-assisted pyrolysis on the microstructure of bituminous coals," Energy, Elsevier, vol. 187(C).
    17. Mocek, Piotr & Pieszczek, Marek & Świądrowski, Jerzy & Kapusta, Krzysztof & Wiatowski, Marian & Stańczyk, Krzysztof, 2016. "Pilot-scale underground coal gasification (UCG) experiment in an operating Mine “Wieczorek” in Poland," Energy, Elsevier, vol. 111(C), pages 313-321.
    18. Zendehboudi, Sohrab & Rezaei, Nima & Lohi, Ali, 2018. "Applications of hybrid models in chemical, petroleum, and energy systems: A systematic review," Applied Energy, Elsevier, vol. 228(C), pages 2539-2566.
    19. Jowkar, Amin & Sereshki, Farhang & Najafi, Mehdi, 2018. "A new model for evaluation of cavity shape and volume during Underground Coal Gasification process," Energy, Elsevier, vol. 148(C), pages 756-765.
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